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<p class="MsoNormal"><font size="2" color="#1f497d" face="Calibri"><span style="font-size:10.0pt;color:#1F497D">Hi-<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="#1f497d" face="Calibri"><span style="font-size:10.0pt;color:#1F497D"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="#1f497d" face="Calibri"><span style="font-size:10.0pt;color:#1F497D">To be clear, this is not a SCSI pass through request; this is an NVMe pass through command that we’ve encapsulated into an IOCTL that we send to
the miniport.<span style="mso-spacerun:yes"> </span>The guideline we wrote doesn’t specify how the app identifies the miniport and we don’t have sample code there and I suppose we probably should.<span style="mso-spacerun:yes">
</span>Here’s some hacky example code that shows how your app can send a bunch of “identify IOCTLs” which you will have to define on your own (an IOCTL that just says “yes I’m a miniport that you are looking for”).<span style="mso-spacerun:yes">
</span>This routine will keep a list of those adapters in an array of handles with the array index being the
<span class="SpellE">scsiport</span> number where the miniport is at that you are interested in.<span style="mso-spacerun:yes">
</span>So, in your driver quickly define an IOCTL and a handler that looks at a signature or whatever and responses success and this should work for you.<span style="mso-spacerun:yes">
</span>There are more elegant ways of doing it but this should get you going<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="#1f497d" face="Calibri"><span style="font-size:10.0pt;color:#1F497D"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="#1f497d" face="Calibri"><span style="font-size:10.0pt;color:#1F497D">Thx<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="#1f497d" face="Calibri"><span style="font-size:10.0pt;color:#1F497D">Paul<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="#1f497d" face="Calibri"><span style="font-size:10.0pt;color:#1F497D"><o:p> </o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><span class="SpellE"><font size="2" color="blue" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";color:blue;mso-fareast-language:EN-US">int</span></font></span><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US"><o:p></o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><span class="SpellE"><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US">FindNlAdapters</span></font></span><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US">(<o:p></o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US"><span style="mso-spacerun:yes">
</span>HANDLE<span style="mso-spacerun:yes"> </span><span class="SpellE">nlAdapters</span>[],<o:p></o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US"><span style="mso-spacerun:yes">
</span><span class="SpellE"><font color="blue"><span style="color:blue">int</span></font></span><span style="mso-spacerun:yes">
</span><span class="SpellE">maxHandles</span><o:p></o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US"><span style="mso-spacerun:yes">
</span>)<o:p></o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US">{<o:p></o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US"><span style="mso-spacerun:yes">
</span><span class="SpellE"><font color="blue"><span style="color:blue">int</span></font></span><span style="mso-spacerun:yes">
</span><span class="SpellE">scsiPort</span>;<o:p></o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US"><span style="mso-spacerun:yes">
</span>TCHAR<span style="mso-spacerun:yes"> </span>buffer[64];<o:p></o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US"><span style="mso-spacerun:yes">
</span>LPTSTR<span style="mso-spacerun:yes"> </span><span class="SpellE">pszTxt</span> =
<font color="#a31515"><span style="color:#A31515">"\\\\.\\Scsi"</span></font>;<o:p></o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US"><span style="mso-spacerun:yes">
</span>LPCTSTR<span style="mso-spacerun:yes"> </span><span class="SpellE">pszFormat</span> =
<font color="#a31515"><span style="color:#A31515">"%<span class="SpellE">s%d</span>:"</span></font>;<o:p></o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US"><span style="mso-spacerun:yes">
</span><span class="SpellE">size_t</span><span style="mso-spacerun:yes">
</span><span class="SpellE">cchDest</span> = 64;<o:p></o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US"><span style="mso-tab-count:1">
</span>DWORD<span style="mso-spacerun:yes"> </span><span class="SpellE">dw</span>;<o:p></o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US"><span style="mso-tab-count:1">
</span>NVME_PRIVATE_IOCTL <span class="SpellE">myIoctl</span>;<o:p></o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US"><span style="mso-tab-count:1">
</span><span class="SpellE"><font color="blue"><span style="color:blue">int</span></font></span>
<span class="SpellE">nlAdapterCount</span> = 0;<o:p></o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US"><o:p> </o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US"><span style="mso-tab-count:1">
</span><span class="SpellE">printf</span>(<font color="#a31515"><span style="color:#A31515">"<span class="SpellE">FindNlAdapters</span>: Searching
<span class="SpellE">ScsiPorts</span>\n"</span></font>);<o:p></o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US"><span style="mso-spacerun:yes">
</span><font color="green"><span style="color:green">// Initialize <span class="SpellE">
nlAdapters</span> array with 0s.</span></font><o:p></o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US"><span style="mso-spacerun:yes">
</span><span class="SpellE">memset</span>(<span class="SpellE">nlAdapters</span>, 0,
<span class="SpellE">maxHandles</span> * <span class="SpellE"><font color="blue"><span style="color:blue">sizeof</span></font></span>(HANDLE));<o:p></o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US"><o:p> </o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US"><span style="mso-spacerun:yes">
</span><font color="blue"><span style="color:blue">for</span></font> (<span class="SpellE">scsiPort</span> = 0;
<span class="SpellE">scsiPort</span> < <span class="SpellE">maxHandles</span>; <span class="SpellE">
scsiPort</span>++) {<o:p></o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US"><span style="mso-spacerun:yes">
</span><span class="SpellE">wsprintf</span>(<span class="SpellE">buffer,pszFormat</span>,
<span class="SpellE">pszTxt</span>, <span class="SpellE">scsiPort</span>);<o:p></o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US"><span style="mso-tab-count:2">
</span>HANDLE hand = <span class="SpellE">CreateFile</span>(buffer,<o:p></o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US"><span style="mso-tab-count:3">
</span>GENERIC_READ | GENERIC_WRITE,<o:p></o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US"><span style="mso-tab-count:3">
</span>FILE_SHARE_READ | FILE_SHARE_WRITE,<o:p></o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US"><span style="mso-tab-count:3">
</span>NULL,<o:p></o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US"><span style="mso-tab-count:3">
</span>OPEN_EXISTING,<o:p></o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US"><span style="mso-tab-count:3">
</span>FILE_ATTRIBUTE_NORMAL,<o:p></o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US"><span style="mso-tab-count:3">
</span>NULL);<o:p></o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US"><span style="mso-tab-count:2">
</span><font color="blue"><span style="color:blue">if</span></font> (hand == INVALID_HANDLE_VALUE) {<o:p></o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US"><span style="mso-tab-count:3">
</span><span class="SpellE">dw</span> = <span class="SpellE">GetLastError</span>();<o:p></o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US"><span style="mso-tab-count:3">
</span><span class="SpellE">printf</span>(<font color="#a31515"><span style="color:#A31515">"<span class="SpellE">didnt</span> find %s<span style="mso-spacerun:yes">
</span>err %d \n"</span></font>, buffer, <span class="SpellE">dw</span>);<o:p></o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US"><span style="mso-tab-count:2">
</span>}<o:p></o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US"><span style="mso-tab-count:2">
</span><font color="blue"><span style="color:blue">else</span></font> {<o:p></o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US"><span style="mso-tab-count:3">
</span><span class="SpellE">printf</span>(<font color="#a31515"><span style="color:#A31515">"found %s \n"</span></font>, buffer);<o:p></o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US"><span style="mso-spacerun:yes">
</span><span class="SpellE">myIoctl.SrbIoCtrl.HeaderLength</span><span style="mso-spacerun:yes">
</span>= <span class="SpellE"><font color="blue"><span style="color:blue">sizeof</span></font></span>(SRB_IO_CONTROL);<o:p></o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US"><span style="mso-spacerun:yes">
</span><span class="SpellE">memcpy</span>(<span class="SpellE">myIoctl.SrbIoCtrl.Signature</span>, NVME_SIG_STR,
<span class="SpellE"><font color="blue"><span style="color:blue">sizeof</span></font></span>(NVME_SIG_STR));<o:p></o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US"><span style="mso-spacerun:yes">
</span><span class="SpellE">myIoctl.SrbIoCtrl.Timeout</span><span style="mso-spacerun:yes">
</span>= 20;<o:p></o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US"><span style="mso-spacerun:yes">
</span><span class="SpellE">myIoctl.SrbIoCtrl.ControlCode</span><span style="mso-spacerun:yes">
</span>= (ULONG)NL_IOCTL_IDENTIFY;<o:p></o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US"><span style="mso-spacerun:yes">
</span><span class="SpellE">myIoctl.SrbIoCtrl.ReturnCode</span><span style="mso-spacerun:yes">
</span>= 0;<o:p></o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US"><span style="mso-spacerun:yes">
</span><span class="SpellE">myIoctl.SrbIoCtrl.Length</span><span style="mso-spacerun:yes">
</span>= <span class="SpellE"><font color="blue"><span style="color:blue">sizeof</span></font></span>(NVME_PRIVATE_IOCTL) -<o:p></o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US"><span style="mso-spacerun:yes">
</span><span class="SpellE"><font color="blue"><span style="color:blue">sizeof</span></font></span>(SRB_IO_CONTROL);<o:p></o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US"><span style="mso-tab-count:2">
</span>BOOL b = <span class="SpellE">DeviceIoControl</span>(hand,<o:p></o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US"><span style="mso-tab-count:3">
</span>IOCTL_SCSI_MINIPORT,<o:p></o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US"><span style="mso-tab-count:3">
</span>&<span class="SpellE">myIoctl</span>,<o:p></o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US"><span style="mso-tab-count:3">
</span><span class="SpellE"><font color="blue"><span style="color:blue">sizeof</span></font></span>(<span class="SpellE">myIoctl</span>),<o:p></o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US"><span style="mso-tab-count:3">
</span>&<span class="SpellE">myIoctl</span>,<o:p></o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US"><span style="mso-tab-count:3">
</span><span class="SpellE"><font color="blue"><span style="color:blue">sizeof</span></font></span>(<span class="SpellE">myIoctl</span>),<o:p></o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US"><span style="mso-tab-count:3">
</span>&<span class="SpellE">dw</span>,<o:p></o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US"><span style="mso-tab-count:3">
</span>NULL);<o:p></o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US"><span style="mso-tab-count:2">
</span><font color="blue"><span style="color:blue">if</span></font> (FALSE == b) {<o:p></o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US"><span style="mso-tab-count:3">
</span><span class="SpellE">printf</span>(<font color="#a31515"><span style="color:#A31515">"<span class="SpellE">FindNlAdapters</span>: NL_IOCTL_IDENTIFY: No NL miniport at this location %d\n"</span></font> ,
<span class="SpellE">scsiPort</span>);<o:p></o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US"><span style="mso-tab-count:3">
</span><span class="SpellE">CloseHandle</span>(hand);<o:p></o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US"><span style="mso-tab-count:2">
</span>}<o:p></o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US"><span style="mso-tab-count:2">
</span><font color="blue"><span style="color:blue">else</span></font> {<o:p></o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US"><span style="mso-tab-count:3">
</span><span class="SpellE">printf</span>(<font color="#a31515"><span style="color:#A31515">"<span class="SpellE">FindNlAdapters</span>: NL_IOCTL_IDENTIFY: NL miniport at this location %d !!!\n"</span></font> ,
<span class="SpellE">scsiPort</span>);<o:p></o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US"><span style="mso-tab-count:3">
</span><span class="SpellE">nlAdapters</span>[<span class="SpellE">scsiPort</span>] = hand;<o:p></o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US"><span style="mso-tab-count:3">
</span><span class="SpellE">nlAdapterCount</span>++;<o:p></o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US"><span style="mso-tab-count:2">
</span>}<o:p></o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US"><span style="mso-tab-count:2">
</span>}<o:p></o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US"><span style="mso-spacerun:yes">
</span>}<o:p></o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US"><span style="mso-spacerun:yes">
</span><span class="SpellE">printf</span>(<font color="#a31515"><span style="color:#A31515">"<span class="SpellE">FindNlAdapters</span>: NL_IOCTL_IDENTIFY Success:
<span class="SpellE">nlAdapterCount</span>: %d \n"</span></font>, <span class="SpellE">
nlAdapterCount</span>);<o:p></o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US"><span style="mso-spacerun:yes">
</span><font color="blue"><span style="color:blue">return</span></font> <span class="SpellE">
nlAdapterCount</span>;<o:p></o:p></span></font></p>
<p class="MsoNormal" style="mso-layout-grid-align:none;text-autospace:none"><font size="2" face="Consolas"><span style="font-size:9.5pt;font-family:Consolas;mso-fareast-font-family:"Times New Roman";mso-fareast-language:EN-US">}<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="#1f497d" face="Calibri"><span style="font-size:10.0pt;color:#1F497D"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="#1f497d" face="Calibri"><span style="font-size:10.0pt;color:#1F497D"><o:p> </o:p></span></font></p>
<div>
<div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><font size="2" face="Tahoma"><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";font-weight:bold">From:</span></font></b><font size="2" face="Tahoma"><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> nvmewin-bounces@lists.openfabrics.org
[mailto:nvmewin-bounces@lists.openfabrics.org] <b><span style="font-weight:bold">On Behalf Of
</span></b>Yong Chen<br>
<b><span style="font-weight:bold">Sent:</span></b> Monday, October 01, 2012 3:28 PM<br>
<b><span style="font-weight:bold">To:</span></b> nvmewin@lists.openfabrics.org<br>
<b><span style="font-weight:bold">Subject:</span></b> [nvmewin] looking for help with IOCTL tool<o:p></o:p></span></font></p>
</div>
</div>
<p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt">Hi, everyone,<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt">My team is starting to work on Windows driver based on nvmewin reference driver. Thanks for sharing such excellent work.<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt">I have a question around IOCTL: which file path should I open in order to send the call to?<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt">The PT_IOCTL.doc in the library suggests to open file handle on
<a href="file:///\\.\ScsiN">\\.\ScsiN</a>: before sending DeviceIoControl() down. Unfortunately, our Windows driver never receives anything. The SPTI tool sample in WDK says ScsiN: only works when the device is unclaimed by a SCSI driver. In the case, proper
PathId, TargetId, and Lun must be set in the SCSI pass thru structure, but NVME_PASS_THROUGH_IOCTL doesn’t have these fields.<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt">According to
<a href="http://msdn.microsoft.com/en-us/library/windows/hardware/ff556013(v=vs.85).aspx">
MSDN</a>, IOCTL send to storage class drivers are mapped to SRBs with function set to SRB_FUNCTION_EXECUTE_SCSI. If I open
<a href="file:///\\.\PhysicalDriveN">\\.\PhysicalDriveN</a>, then I do receive SRBs with such Execute SCSI function code. But the current driver code expects SRB_FUNCTION_IO_CONTROL.<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt">How do you guys do it?<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt">Many thanks in advance,<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt"><o:p> </o:p></span></font></p>
<div class="MsoNormal" align="center" style="text-align:center"><font size="2" face="Calibri"><span style="font-size:11.0pt">
<hr size="2" width="100%" align="center">
</span></font></div>
<p class="MsoNormal"><font size="2" color="black" face="华文细黑"><span style="font-size:10.0pt;font-family:STXihei;color:black">Yong Chen<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="black" face="华文细黑"><span style="font-size:10.0pt;font-family:STXihei;color:black">Storage Architect<br>
</span></font><font size="2" color="black" face="SimSun"><span lang="ZH-CN" style="font-size:10.0pt;font-family:SimSun;color:black">华为技术有限公司</span></font><font size="2" color="black" face="华文细黑"><span style="font-size:10.0pt;font-family:STXihei;color:black">
Huawei Technologies Co., Ltd<o:p></o:p></span></font></p>
<p class="MsoNormal"><!--[if gte vml 1]><v:shapetype id="_x0000_t75" coordsize="21600,21600" o:spt="75" o:preferrelative="t" path="m@4@5l@4@11@9@11@9@5xe" filled="f" stroked="f">
<v:stroke joinstyle="miter" />
<v:formulas>
<v:f eqn="if lineDrawn pixelLineWidth 0" />
<v:f eqn="sum @0 1 0" />
<v:f eqn="sum 0 0 @1" />
<v:f eqn="prod @2 1 2" />
<v:f eqn="prod @3 21600 pixelWidth" />
<v:f eqn="prod @3 21600 pixelHeight" />
<v:f eqn="sum @0 0 1" />
<v:f eqn="prod @6 1 2" />
<v:f eqn="prod @7 21600 pixelWidth" />
<v:f eqn="sum @8 21600 0" />
<v:f eqn="prod @7 21600 pixelHeight" />
<v:f eqn="sum @10 21600 0" />
</v:formulas>
<v:path o:extrusionok="f" gradientshapeok="t" o:connecttype="rect" />
<o:lock v:ext="edit" aspectratio="t" />
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<v:imagedata src="cid:image001.jpg@01CD9FEF.C8D9F5E0" o:title="company_logo" />
<w:wrap type="square"/>
</v:shape><![endif]--><![if !vml]><img width="128" height="40" src="cid:image003.jpg@01CD9FEF.C8D9F5E0" align="left" alt="Company_logo" v:shapes="ridImg"><![endif]><font size="2" color="black" face="华文细黑"><span style="font-size:10.0pt;font-family:STXihei;color:black">Office:
408-330-5482<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="black" face="Cambria"><span style="font-size:10.0pt;font-family:"Cambria","serif";color:black">Mobile: 425-922-0658</span></font><font size="2" color="black" face="华文细黑"><span style="font-size:10.0pt;font-family:STXihei;color:black"><o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="black" face="Calibri"><span style="font-size:11.0pt;color:black">Email:
<a href="mailto:yong.sc.chen@huawei.com">yong.sc.chen@huawei.com</a><br>
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Santa Clara, CA 95050<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" color="black" face="Calibri"><span style="font-size:11.0pt;color:black"><a href="http://www.huawei.com">http://www.huawei.com</a><o:p></o:p></span></font></p>
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<p class="MsoNormal"><font size="2" face="Calibri"><span style="font-size:11.0pt"><o:p> </o:p></span></font></p>
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